.register{
    width: 600px;
    margin: 50px auto;
}
textarea{
    width:500px;
    height:150px;
}
.pswd{
    position:absolute;
    left:900px;
}
.error-msg{
    color:red;
    position:absolute;
    left:1000px;
}
.img-validcode{
    float:right;
    margin-top:30px;
    margin-left:50px;

}

#validcode{
    width:495px;
    height:130px;
    float:left;
    margin-top:-15px;
    margin-left: 110px;
}
#validcode-img{
    float:left;
}
#validcode-input{
    float:left;
    height:34px;
    margin-top:20px;
}

.ta-exercise{
    width: 494px;
    height:200px;
}